OT na kay layo ra kaayo ang North Korea sa Moscow, Britain ug Pearl Harbor, pero game!
The Battle of Britain happened in 1940, more than a year before Pearl Harbor.
The United Kingdom no longer has an interest in maintaining a large navy because it no longer has colonies to protect. And the fact is, the UK economy can no longer support a large navy.
Two points.
1) On leaving the Philippine Islands. It is true that Allied leaders were in agreement that Europe should be prioritized over the Pacific campaign. Britain was the only country left in western Europe that wasn't in Nazi hands. It needed no less than the full support of the Allied nations and particularly the United States if it was to remain so.
The Allies also needed time to build up navy and army units before taking the offensive against the Japanese.
2) On Russia's potential "defeat".
Nazi Germany could never have defeated the Soviet Union if only because of the latter's sheer size--both geographical and population. It was like a daschund trying to hump a Woolly Mammoth, if you will.
The Soviet Union's early defeats in Hitler's blitzkrieg thrust into the
Rodina were because of Stalin's egregious lapse in judgment, namely his blind trust in Hitler sticking to an existing non-aggression pact between their two countries. He was stabbed in the back while his pants were down.
After the early setbacks, he got back on his feet, mobilized his army through conscription, fired up its massive industrial machinery and solicited support from the United States, the world's largest economy. Stalin grew his army to over 8 million men. Tractor and truck factories became tank factories. US planes and war materiel came in under lend-lease agreements.
The Soviet wartime factories were located beyond the Ural Mountains, safe from German bombers and prying eyes. The Germans never knew the Soviets were churning out so much materiel or were capable of doing so in the first place.
So when the Soviets finally counter-attacked, they did so with such overwhelming force and in such numbers that German division after German division were swept aside. It didn't help that German supply lines were already stretched thin by the massive distances involved.
The Soviet counterthrust was led by the brilliant Gen. Zhukov. But the Soviets had another general to thank, namely "General Winter." That is, the harsh Soviet winters that could bring any army to a halt, particularly one as highly mechanized as the German army. Tank tracks froze into the ground rendering them immobile. Engine oil froze solid. Soldiers froze to death. It didn't help that winter at the time the Germans attacked was the harshest in many years.
Over a hundred years before, Napoleon Bonaparte invaded Russia and his Grand Armee met the same fate in the hands of General Winter.
Many historian say the Eastern front was the main event in the war in Europe. The size and scale of the conflict is something very few people in the west can even begin to comprehend. The west likes to think the end of Nazi Germany began with the Allied landings in Normandy.
In reality, France and North Africa were mere sideshows. Indeed, by the time the Allies finally landed in Normandy in June 1944, the Nazis had been all but defeated in the Eastern Front (Stalingrad and the pivotal Battle of Kursk was in 1943). Its crack divisions had been decimated. The retreating Nazis left scores of dead soldiers and destroyed tanks, trucks, guns, planes and other materiel in the Soviet Union. The Nazi war machinery had truly been shaken up.
So it's actually the other way round. Massive defeats in the Eastern front made the Allies' jobs in Western Europe and its southern underbelly (North Africa, then Italy) easier.
And another thing to consider. Hitler had to postpone, then cancel, the invasion of Britain because the war in the Eastern Front demanded too much of the Nazi war machinery.
Hitler could never have won the war against the Soviet Union. That he made strategic and tactical mistakes only hastened the inevitable.
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